// Copyright 2013-2016, Google, Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

'use strict';

const {google} = require('googleapis');
const sampleClient = require('../sampleclient');

const analytics = google.analytics({
  version: 'v3',
  auth: sampleClient.oAuth2Client
});

// Custom Goals must be exist prior to used as an objectiveMetric
const objectiveMetric = 'ga:goal1Completions';

// Serving frameworks listed below:
// https://developers.google.com/analytics/devguides/platform/experiments#serving-framework
const servingFramework = 'API';

// Invalid URLs are used when user is not redirected when showing an experiment
// Read more: http://goo.gl/oVwKH1
const variations = [
  {'name': 'Default', 'url': 'http://www.example.com', 'status': 'ACTIVE'},
  {'name': 'variation 1', 'url': 'http://www.1.com', 'status': 'ACTIVE'},
  {'name': 'variation 2', 'url': 'http://www.2.com', 'status': 'ACTIVE'}
];

async function runSample () {
  const res = await analytics.management.experiments.insert({
    accountId: 'your-accountId',
    webPropertyId: 'your-webPropertyId',
    profileId: 'your-profileId',
    requestBody: {
      'name': 'Example Experiment',
      'status': 'READY_TO_RUN',
      'objectiveMetric': objectiveMetric,
      'servingFramework': servingFramework,
      'variations': variations
    }
  });
  console.log(res.data);
  return res.data;
}

const scopes = [
  'https://www.googleapis.com/auth/analytics'
];

sampleClient.authenticate(scopes)
  .then(() => runSample())
  .catch(console.error);
